See http://cxc.harvard.edu/mta/SOT_reports/sot-shift.html Shift H4987. Start at 076:20:00 GMT = 4:00pm 13 Mar 2013 EDT End at 076:21:15 GMT = 5:15pm 13 Mar 2013 EDT ACIS SOT Shift Report 2013-01-29 H4987 ACIS Personnel: Paul Plucinsky HRC: Mike Juda PLAN -------- We intend to run CAP1267 to execute a long ECS measurement. SUMMARY: -------- The HRC anti-Co rates and the E1300 rates were very low, so we were able to run CAP 1267. This should be a 72 ks ECS measurement. If we get all of this, I believe this will be a new record for the longest ECS measurement in the mission. TIMELINE (GMT day 76) ---------------------- 076:20:00 AOS on DSS 65 076:20:03 OC/CC start the SSR dump 076:20:15 OC/CC are ready to start CAP 1267 076:20:16 OC/CC and ACIS verify initial configuration 076:20:18 change OBSID to 62675 076:20:45 FP Temp= -119.7 C 076:20:46 Mike reports the HRC shield rates are low 076:20:51 biases complete 076:20:53 first event data, event rates look nominal, threshold crossing rates look nominal, delta overclocks are negative and between -14 and -36 076:20:55 the ACIS door is still open 076:21:00 event rates after about 97-98 frames Exposure │ 97 │ 98 │ 97 │ 98 │ 97 │ 98 │ Thresholds │12832 │ 408 │12265 │ 9690 │12701│ 7830 │ Filtered │ 415 │ 45 │ 359 │ 287 │ 441│ 234 │ Events │ 30 │ 33 │ 66 │ 22 │ 78│ 45 │ Tot Events │ 6653 │ 4319 │ 5537 │ 5822 │5062 │ 6331 │ Oclk A +- │618 -28│824 -22│619 -24│734 -18│762 -19 671 -22│ Oclk B +- │759 -22│603 -30│500 -23│809 -18│738 -23 592 -32│ Oclk C +- │763 -20│750 -30│684 -22│634 -27│625 -27 725 -21│ Oclk D +- │833 -16│698 -29│786 -14│937 -18│571 -37 525 -32│ Threshold | 11207 | 661 | 11916 | 12071 | 14905 | 21625 | Filtered | 375 | 85 | 389 | 370 | 372 | 791 | Events | 39 | 37 | 29 | 37 | 24 | 40 | Tot Events | 6125 |8047 | 5854 | 6365 | 5723 | 6152 | 076:21:01 tell OC/CC that all data looks nominal from ACIS 076:21:19 this ECS measurement should produce about 72 ks of data 076:21:15 LOS